Change Future call in getArticles from apply to successful
Update meta to Map of String, JsValue
Add sublinks to FaciaFields trait which is mixed into Trail
Take sublinks from the metadata in a CollectionItem
 - Get from Content API
 - Pass through Content.apply
Split out for comprehension to make it clearer
Rename values
Split out retrieving of sublinks into method
Add failure callback on sublinks request
Spread out to simply
Change over to supporting instead of sublinks
Fix metaData shadowing
Override val inside class variables
Merge branch 'master' into sublinks-model

Conflicts:
	common/app/model/content.scala
Merge branch 'sublinks-model'